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  • Javascript: window.onload problem

    - by Matrym
    This isn't working in IE (although it does work in FFX). Why? Using HTML in the header: <script type="application/javascript"> // And finally, let's call the code ourselves. window.onload = lbp.init; </script> And then the script: // lbp is the script's universal variable, which retains everything var lbp = {}; // The sequence of functions to trigger lbp.init = function() { alert('hi'); } Thanks in advance for your help =)

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  • Why does having a transitional doctype, cause my javascript to fail in WebKit and Opera Browsers

    - by morgenmuffel
    Hi all I am trying to get a mouseover script to work, when there is no doctype set the script works fine in all browsers I test, but the site looks like a dogs breakfast However When i set the doctype to transitional (it has to be this doctype) Firefox and IE8 (&compat mode) work fine But Opera and the webkit browsers can only display the popup above the page fold, so if you scroll down the page and go over an image the popup appears above the visible page. And I can't figure out why, there are a couple of instances of document.all in the code, but my attempts to replace these have broken the code, besides the fact it works in Firefox and not Opera makes me think that document.all is not the issue Any help would be appreciated, even just telling me why a doctype would effect Javascript would be a help. Here is the site without a doctype As I can't post 2 links, being a new user and all, follow the link above and change and change the url from noodle3 to noodle to see the site with a doctype

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  • Compressing plaintext in JavaScript?

    - by AgileMeansDoAsLittleAsPossible
    I have a simple Notepad-like web application I'm making for fun. When you save a document, the contents of a <textarea> are sent to the server via Ajax and persisted in a database. Let's just say for shits and giggles that we need to compress the contents of the <textarea> before sending it because we're on a 2800 baud modem. Are there JavaScript libraries to do this? How well does plain text compress in the first place?

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  • JavaScript Array Problem

    - by JasonS
    Hi, This wasn't the question I was going to ask but I have unexpectedly run aground with JavaScript arrays. I come from a PHP background and after looking at a few websites I am none the wiser. I am trying to create a multi-dimensional array. var photos = new Array; var a = 0; $("#photos img").each(function(i) { photos[a]["url"] = this.src; photos[a]["caption"] = this.alt; photos[a]["background"] = this.css('background-color'); a++; }); Error message: photos[a] is undefined. How do I do this. Thanks.

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  • Using javascript on an HTML table?

    - by Michael McKay
    Hi, few questions, just wondering if anyone can help? I have a table with 1 long row (1000 pixels) and one single column, how do i go about creating a method whereby when the mouse cursor is on the leftmost side of the cell, a variable, lets say X is set to 0, the further right the mouse cursor moves in the cell, the value of X increases. I know that sounds like a strange question but im working on a project where this type of functionality is desired. Is there a javascript method to create this feature? Thanks for any help.

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  • Is the JavaScript RegExp implicit method deprecated?

    - by Eric
    So everyone knows what I mean by "implicit methods"? They're like those default properties from the Windows COM days of yore, where you could type something like val = obj(arguments) and it would be interpreted as val = obj.defaultMethod(arguments) I just found out JavaScript has the same thing: the default method of a RegExp object appears to be 'exec', as in /(\w{4})/('yip jump man')[1] ==> jump This even works when the RegExp object is assigned to a variable, and even when it's created with the RegExp constructor, instead of /.../, which is good news to us fans of referential transparency. Where is this documented, and/or is it deprecated?

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  • javascript constructor reset: What is it ?

    - by Sake
    I came across this slide: http://www.slideshare.net/stoyan/javascript-patterns#postComment at page 35: Option 5 + super + constructor reset function inherit(C, P) { var F = function(){}; F.prototype = P.prototype; C.prototype = new F(); C.uber = P.prototype; C.prototype.constructor = C; // WHY ??? } I don't get it. Can anybody please explain what the last line for ? C.prototype.constructor = C; // WHY ??? Thanks

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  • RegEx/Javascript validation: Don't allow comma as a valid character

    - by baldwingrand
    I'm doing Javascript validation on my number fields. I'm using RegEx to do this - first time RegEx user. I need the user to only enter numbers and decimals, but not commas. (i.e. 3600.00 is okay, but 3,600.00 is not). I can't figure out how to eliminate the commas as an accepted character. Any help is appreciated. Thanks! var filter = /^([0-9])/; if (!filter.test(txtItemAmount.value)) { msg += "Item amount must be a number.\n"; txtItemAmount.focus }

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  • Page validation not working in javascript

    - by crisgomez
    Hi, I have a problem regarding checking the page validation in javascript. I have a user controls in my aspx page,for example control1, control2, and control3. For each control I created a validation group, then I tried to use the code below, the problem is, it will always return a false value eventhough the page validation has been satisfied.What went wong with the code below?By the way I used Ajax in my application. if (typeof (Page_Validators) != "undefined") { if (typeof (Page_ClientValidate) == 'function') { Page_ClientValidate(); } if (Page_IsValid) { // do something alert('Page is valid!'); } else { // it will always goes here eventhough it was validated successfully alert('Page is not valid!'); } }

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  • javascript filter nested object based on key value

    - by murray3
    I wish to filter a nested javascript object by the value of the "step" key: var data = { "name": "Root", "step": 1, "id": "0.0", "children": [ { "name": "first level child 1", "id": "0.1", "step":2, "children": [ { "name": "second level child 1", "id": "0.1.1", "step": 3, "children": [ { "name": "third level child 1", "id": "0.1.1.1", "step": 4, "children": []}, { "name": "third level child 2", "id": "0.1.1.2", "step": 5, "children": []} ]}, ]} ] }; var subdata = data.children.filter(function (d) { return (d.step <= 2)}); This just returns the unmodified nested object, even if I put value of filter to 1. does .filter work on nested objects or do I need to roll my own function here, advise and correct code appreciated. cjm

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  • How to solve JavaScript origin problem with an application and static file server

    - by recipriversexclusion
    In a system that I'm building I want to serve Static files (static HTML pages and a lot of images), and Dynamic XML generated by my servlet. The dynamic XML is generated from my database (through Hibernate) and I use Restlets to serve it in response to API calls. I want to create a static file server (e.g. Apache) so that this does not interfere with the dynamic server traffic. Currently both servers need to run on the same machine. I've never done something like this before and this is where I'm stuck: The static HTML pages contain JavaScript that makes API calls to the dynamic server. However, since the two servers operate on different ports, I get stuck with the same origin problem. How can this be solved? As a bonus, if you can point me to any resources that explain how to create such a static/dynamic content serving system, I'll be happy. Thanks!

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  • javascript fit image to box

    - by Manna
    I need to make my image fitting into my div, I want the picture to be only inside the div, the rest of the picture will be behind the other elements. Basically I want to achieve the same effect as here http://tommywebdesigner.com/Home%20Page.html but with the div id="background"and div id="content" i have created. As you can see first i gave margin-bottom="350px to the header in order to create a blank space, here i have the space for the img in my div id="background"which is located under (z-index: -1;) and the rest of the elements is placed over inside the the div id="content" (z-index:2;) I need now a Javascript which fit this image in the div id="background". Now the image is not located between the menu-bar and the rest of the elements Here you can look: http://fiddle.jshell.net/CGJmE/10/ Here the effect i want to achieve playing with these div : http://tommywebdesigner.com/Home%20Page.html The reason why i want to do like that is beacuse in the future maybe i will need to put a video there and i couldn do with background-image as i have done here

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  • Convert System.DateTime to Javascript DateString

    - by SARAVAN
    I am working on an ASP .net MVC application. I have a System.DateTime? property say creationDate, which gets its value assigned from controller code. In my javascript I have access to this value, and I wanted to display this value in mm/dd/yyyy format in my grid. But I am not sure on how to convert System.Datetime? of c# to a javscript date or datestring value? Any help would be appreciated.

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  • Mapping multiple keys to the same value in a Javascript hash

    - by Bears will eat you
    I use a Javascript hash object to store a set of numerical counters, set up like this [this is greatly simplified]: var myHash = { A: 0, B: 0, C: 0 }; Is there a way to make other keys, ones not explicitly in myHash, map to keys that are? For instance, I'd like [again, this is simplified]: myHash['A_prime']++; // or myHash.A_prime++; to be exactly equivalent to myHash['A']++; // or myHash.A++; e.g. incrementing the value found at the key A, not A_prime.

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  • iPad javascript scrolling

    - by davids
    I'd like to get the same behaviour of the native javascript scrollTo function in iPad, just attaching a function to the swipe event and scrolling the content a specific number of pixels. That doesn't work in iPad using scrollTo or several different jquery plugins, like scrollTo or iScroll. I think I'm having problems because I'm working with an iframe, as I have another html document in it, with its body divided in columns, but I'm just showing the first one. The point of all this is that, after swiping, it should show the next/prev column, and I tried scrolling the iframe window or the inner's html body, which actually works in chrome, but it doesn't in iPad.

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  • Setfocus to textbox from JavaScript after just creating the textbox with JavaScript?

    - by Scott
    So I just created a textbox with JavaScript like this: EDIT: Added the len variable var len = tbl.rows.length; var rtb = tbl.insertRow(len); var cName = rtb.insertCell(0); var cDis = rtb.insertCell(1); var cDur = rtb.insertCell(2); cName.innerHTML = '<input type="text" name="tbName1' + len + '" value="' + selected_text + '" >'; cDis.innerHTML = '<input type="text" name="tbDis1' + len + '" id="tbDis1' + len + '" >'; cDur.innerHTML = '<input type="text" name="tbDur1' + len + '" >'; var txtBox = document.getElementById('tbDist1' + len); txtBox.focus(); EDIT:Changed the second to last line. Still get this error: txtBox is null txtBox.focus(); The last line isn't working. After I create the textbox, I can't set focus to it. Is there any way of doing so?

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  • Getting Google Chrome to Ignore IE Javascript

    - by swajak
    I'm creating a slideshow using javascript that fades images. Awhile back, I discovered that to change the opacity of an image, I have to use a different API, depending on whether the page is viewed in Firefox or IE. Firefox: img.style.opacity = [value 0 to 1]; IE: img.style.filter="progid:DXImageTransform.Microsoft.Alpha(opacity= [value 0 to 100] )"; So, currently, I use <script LANGUAGE="JScript"> for code that is meant for IE. This was suggested in the Mozilla docs. The problem: Chrome thinks my <script LANGUAGE="JScript"> code is valid, when it is not. How to make Chrome ignore the code inside <script LANGUAGE="JScript"> ? Or how to make my opacity code cross-browser?

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  • Simple Javascript Won't work

    - by webzide
    Dear Experts, I was testing some code and I became very frustrated as I couldn't even get an simple DOM alert box to work Anyway here's the code <!DOCTYPE HTML PUBLIC "-//W3C/DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/tdt/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <script type="text/javascript"> <!-- var x=document.getElementById("myHeader"); alert(x.innerHTML); //--> </script> </head> <body> <h1 id="myHeader">Click me!</h1> </body> </html> I don't know what I did wrong but I just don't see the alert box. I use FF btw.

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  • Decent JavaScript IDE

    - by thatismatt
    What is a decent IDE for developing JavaScript, I'll be writing both client side stuff and writing for Rhino. Ideally It needs to run on Mac OSX, although something that runs on Windows too would be nice. ADDITIONAL: Having had a play with both js2 and Aptana, I think I'll be continuing to use Aptana. Mainly because I find emacs a bit hard to get my head round, although I did think that the error hi-lighting in js2 was better than that in Aptana. I'm still looking for a way to visually debug my js code that is running atop Rhino...

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  • How to set the time for a specific local in javascript

    - by Joao
    Hi, i have a problem, and maybe someone can help me, i will explain... i have the in javascript "var date= new date();" and its give me the local time (browser time) but i want force this data/time for a especific local... for example... Spain. i want everytime that someone enter in the page (from others country) the date need be the spanish hour. i found some soluction but the problem is the summer time and winter time... we have offset variations because some time is +1 hours and others is +2.... someone can help me in one soluction? thanks [email protected]

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  • Javascript: find URLs in a document

    - by user317005
    how do I find URLs (i.e. www.domain.com) within a document, and put those within anchors: < a href="www.domain.com" www.domain.com< /a html: Hey dude, check out this link www.google.com and www.yahoo.com! javascript: (function(){var text = document.body.innerHTML;/*do replace regex => text*/})(); output: Hey dude, check out this link <a href="www.google.com">www.google.com</a> and <a href="www.yahoo.com">www.yahoo.com</a>!

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  • Mobile Safari Youtube opened via javascript

    - by Squeegy
    We have a youtube player embedded in a plage in Mobile Safari and it works great. But we need to be able to launch the youtube player by a means other than user tapping the video itself, for various reasons. So I am trying to figure out what event to trigger in javascript to make it happen with no luck. None of the following appear to work. var vid = document.getElementById('vid'); vid.click(); vid.onclick(); vid.ontouchend(); vid.ontouchstart(); vid.focus(); I tried to find an event handler added to the embedded object with this snippet, but didn't find anything. for (var key in vid) { if (typeof vid[key] == 'function') console.log(key +': '+ vid[key]); } Is this just so wrapped up in a custom plugin there is no way?

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  • Checking online users with Facebook Javascript SDK

    - by Roman
    Hi, I'm trying to build some kind of a social game in facebook, where I need that every user that has approved my APP is able to receive notifications from me. When the user approves my App, I save his UID in the DB for future reference. At some later time, I want to make it possible for other users find partners for a game - so I need a way to pick randomly some user from my DB and check if he's online. Then, send him a message and propose to play with the current player. So 2 questions: How can I check if some user is online, using Javascript SDK? It seems that in the new Graph API I can't get the users' online status. How can I then send him a message and propose to play the game? When he approves to play - he is being forwarded to the game page. Many thanks in advance, Roman

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  • javascript: problem with function

    - by Zayatzz
    hi I have this simple function: <script type="text/javascript"> //<![CDATA[ jQuery(function($){ function here(b){alert(b);} ; here(6); }); //]]> </script> and i have this button on page: <button onclick="here(7);">TEST</button> The alert fires on page load, but not on button click. If i replace the here(7) with alert, it works fine. Why doesnt it work with function though? Alan

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  • JavaScript - checking for any lowercase letters in a string

    - by pcampbell
    Consider a JavaScript method that needs to check whether a given string is in all uppercase letters. The input strings are people's names. The current algorithm is to check for any lowercase letters. var check1 = "Jack Spratt"; var check2 = "BARBARA FOO-BAR"; var check3 = "JASON D'WIDGET"; var isUpper1 = HasLowercaseCharacters(check1); var isUpper2 = HasLowercaseCharacters(check2); var isUpper3 = HasLowercaseCharacters(check3); function HasLowercaseCharacters(string input) { //pattern for finding whether any lowercase alpha characters exist var allLowercase; return allLowercase.test(input); } Is a regex the best way to go here? What pattern would you use to determine whether a string has any lower case alpha characters?

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